The Paytm Payment Gateway WordPress plugin before 2.8.9 does not sanitize and escape data it stores from payment callbacks before outputting it in an admin page, and the integrity check on those callbacks can be forged when the gateway is enabled without credentials, allowing unauthenticated users to store scripts that will run in the session of a store administrator.
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Fixes

Solution

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Workaround

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History

Thu, 01 Oct 2026 08:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79

Thu, 01 Oct 2026 06:15:00 +0000

Type Values Removed Values Added
Description The Paytm Payment Gateway WordPress plugin before 2.8.9 does not sanitize and escape data it stores from payment callbacks before outputting it in an admin page, and the integrity check on those callbacks can be forged when the gateway is enabled without credentials, allowing unauthenticated users to store scripts that will run in the session of a store administrator.
Title Paytm Payment Gateway < 2.8.9 - Unauthenticated Stored XSS via Payment Callback
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-10-01T06:00:23.972Z

Reserved: 2026-08-27T11:47:20.863Z

Link: CVE-2026-81739

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-01T06:17:10.783

Modified: 2026-10-01T06:17:10.783

Link: CVE-2026-81739

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T07:45:04Z

Weaknesses